in reply to Re^2: Difference arrays.
in thread Difference arrays.

I noticed that your solution is symmetric because it has the abs in it. However I was taking BrowserUk by the word: "those in the first not in the second".

Given the restriction "one a proper subset of the other", it does not matter, and our solutions print essentially the same elements (maybe in a different order).

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Re^4: Difference arrays.
by Skeeve (Parson) on Sep 04, 2008 at 21:38 UTC

    Something I learned again: Keep your big mouth shut until you read a second time ;-) So Sorry for crying too early. MINE has the bug. I've added comments above.

    s$$([},&%#}/&/]+}%&{})*;#$&&s&&$^X.($'^"%]=\&(|?*{%
    +.+=%;.#_}\&"^"-+%*).}%:##%}={~=~:.")&e&&s""`$''`"e
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